added unit testing, and started implementing unit tests...phew

node_modules/async/retryable.js

@@ -0,0 +1,65 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+exports.default = function (opts, task) {
+    if (!task) {
+        task = opts;
+        opts = null;
+    }
+    var _task = (0, _wrapAsync2.default)(task);
+    return (0, _initialParams2.default)(function (args, callback) {
+        function taskFn(cb) {
+            _task.apply(null, args.concat(cb));
+        }
+
+        if (opts) (0, _retry2.default)(opts, taskFn, callback);else (0, _retry2.default)(taskFn, callback);
+    });
+};
+
+var _retry = require('./retry');
+
+var _retry2 = _interopRequireDefault(_retry);
+
+var _initialParams = require('./internal/initialParams');
+
+var _initialParams2 = _interopRequireDefault(_initialParams);
+
+var _wrapAsync = require('./internal/wrapAsync');
+
+var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+module.exports = exports['default'];
+
+/**
+ * A close relative of [`retry`]{@link module:ControlFlow.retry}.  This method
+ * wraps a task and makes it retryable, rather than immediately calling it
+ * with retries.
+ *
+ * @name retryable
+ * @static
+ * @memberOf module:ControlFlow
+ * @method
+ * @see [async.retry]{@link module:ControlFlow.retry}
+ * @category Control Flow
+ * @param {Object|number} [opts = {times: 5, interval: 0}| 5] - optional
+ * options, exactly the same as from `retry`
+ * @param {AsyncFunction} task - the asynchronous function to wrap.
+ * This function will be passed any arguments passed to the returned wrapper.
+ * Invoked with (...args, callback).
+ * @returns {AsyncFunction} The wrapped function, which when invoked, will
+ * retry on an error, based on the parameters specified in `opts`.
+ * This function will accept the same parameters as `task`.
+ * @example
+ *
+ * async.auto({
+ *     dep1: async.retryable(3, getFromFlakyService),
+ *     process: ["dep1", async.retryable(3, function (results, cb) {
+ *         maybeProcessData(results.dep1, cb);
+ *     })]
+ * }, callback);
+ */